backward movement
because momentum = mass × speed
And mass must be in positive value..
so negative value is speed
which moving backward..
Sound travels fastest in solids,than liquids, and faster in liquids, than in gases.
<span>superconductors, conductors, semiconductors, insulators </span>
If the runner is running in a circular track then yes when something or someone is moving in a circular motion at a constant speed they are indeed accelerating. They’re accelerating because the direction of the velocity vector is changing
